PlanningTrack
Get started

England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates
40,118Searchable applications
300Recorded as pending
86%Approval rate · 33,650 approved or refused records
4,801Refused applications

28,849 approved · 4,801 refused · 2,206 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 30 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026
Planning information Planning and buildingLocal plan Our Local PlanPre-application advice Pre-application advice (planning applications)Conservation areas Schedule of properties removed from the Welwyn Conservation AreaArticle 4 directions Article 4 Directions

Conservation areas and Article 4 directions

Explore published planning boundaries and follow their source records for designation details. Coverage varies: an empty map does not mean there are no restrictions. Check the council’s current maps and documents before relying on a boundary.

Conservation areas9 mapped area records
Article 4 direction areasNo boundary records available in this collection

Interactive planning map loads with JavaScript. Dataset sources are linked below.

Download Article 4 coverage for all authorities (CSV)

Data downloaded 14 Sept 2026. Display boundaries are simplified and indicative. Map record counts are not a complete count of designations or directions.

Sources: Planning Data conservation areas and Article 4 direction areas. Contains public sector information licensed under the Open Government Licence v3.0.

More application records

  1. Decided - Refused6/2022/0691/FULL

    Change of use from amenity to residential land with the formation of a new access, crossover and hardstanding, along with a driveway

    306 Bishops Rise Hatfield Hertfordshire AL10 9QT

    Received 23 Mar 2022
  2. Appeal Decided - DismissedS6/2007/0145/FP

    ERECTION OF DETACHED DOUBLE GARAGE

    30 Carbone Hill Northaw Potters Bar EN6 4PN

    Received 29 Jan 2007
  3. Decided - Granted6/2016/1359/EM

    Erection of single storey side and rear extensions, two storey side extension following demolition of existing garage

    2 Aldock, Welwyn Garden City, AL7 4QF

    Received 4 Jul 2016
  4. Appeal Decided - Dismissed6/2019/1268/FULL

    Erection of a 1 x dwelling with associated parking and private amenity space

    55 Roe Green Close Hatfield AL10 9PF

    Received 29 May 2019
  5. Decided - Granted6/2015/2468/HOUSE

    Proposed opened framed porch canopy to front , single storey side extension to allow for relocation of existing garage and two storey rear extension.

    23 Woodlands, Brookmans Park, Hatfield, AL9 7AN

    Received 15 Dec 2015
  6. Decided - GrantedS6/2008/0716/DS

    DISCHARGE OF CONDITION 2 FROM DECISION NOTICE S6/2006/1726/FP (SAMPLES OF MATERIALS)

    UNIVERSITY OF HERTFORDSHIRE, DE HAVILLAND CAMPUS, ST ALBANS, HERTFORDSHIRE, AL10 9BW

    Received 22 Apr 2008
  7. Decided - Granted6/2023/1037/COND

    Submission of details pursuant of condition 12 (bus stops) condition 13 (street management and maintenance) and condition 14 (external lighting) on planning permission 6/2018/3233/OUTLINE

    First House Hyde Valley House Hyde Valley Welwyn Garden City AL7 4NE

    Received 17 May 2023
  8. Decided - Granted6/2021/0635/HOUSE

    Erection of a single storey side extension

    12 Dellcott Close Welwyn Garden City AL8 7BD

    Received 26 Feb 2021
  9. Decided - GrantedN6/2013/2489/TC

    Reduce Two Oaks trees by 30%

    10 Attimore Close and land adj to 10 Attimore Close, Welwyn Garden City, AL8 6LN

    Received 13 Nov 2013
  10. Decided - RefusedS6/2007/1124/FP

    ERECTION OF SINGLE STOREY REAR AND TWO FIRST FLOOR SIDE EXTENSIONS

    111 The Ryde Hatfield AL9 5DP

    Received 27 Jul 2007
  11. Decided - GrantedS6/2007/0992/FP

    ERECTION OF A TWO BEDROOM ATTACHED DWELLING

    2 Waterworks Cottages Bishops Rise Hatfield AL10 9HJ

    Received 2 Jul 2007
  12. Appeal Decided - Dismissed6/2020/0409/HOUSE

    Erection of a single storey infill extension

    16 Great North Road Welwyn AL6 0PL

    Received 13 Feb 2020
  13. Decided - GrantedS6/2004/0518/FP

    FRONT EXTENSION TO ENTRANCE FOYER

    Colonial House 87 Great North Road Hatfield AL9 5DA

    Received 2 Apr 2004
  14. Decided - GrantedW6/2007/1089/EM

    TWO STOREY SIDE EXTENSION WITH ONE STOREY GARAGE

    55 Pentley Park, Welwyn Garden City, AL8 7SF

    Received 20 Jul 2007
  15. Decided - GrantedS6/2008/0312/FP

    ERECTION OF TWO STOREY SIDE AND REAR EXTENSION AND SINGLE STOREY FRONT SIDE AND REAR EXTENSION.

    369 ST ALBANS ROAD WEST, HATFIELD, HERTFORDSHIRE, AL10 9RU

    Received 18 Feb 2008
  16. Appeal Decided - DismissedN6/2004/1403/FP

    ERECTION OF TWO STOREY SIDE EXTENSION

    23 Lemsford Lane Welwyn Garden City AL8 6YN

    Received 20 Sept 2004
  17. Decided - GrantedS6/2007/0919/FP

    PROPOSED FRONT EXTENSION WITH CANOPY TO FORM PORCH & CONVERSION OF EXISTING GARAGE TO FORM HABITABLE ACCOMMODATION

    3 Church Close Cuffley Potters Bar EN6 4LS

    Received 21 Jun 2007
  18. Decided - WithdrawnS6/2014/1397/NM

    Non material amendment following approval of planning permission S6/2013/1940/FP - Proposed alteration of flat parapet roof over approved garage to pitched hipped roof. Alterations to front elevation to include porthole. Alteration of exterior garage materials from render to brickwork

    27 Tolmers Road, Cuffley, Potters Bar, EN6 4JF

    Received 26 Jun 2014
  19. Decided - Granted6/2017/0996/COND

    Submission of details pursuant to conditions 1 (Materials) (Archaeological Investigation) 4 (Landscaping) 5 (Tree Protection) and 7 (Construction Method Statement) on planning permission 6/2016/1445/FULL

    2 Wendover Drive Welwyn AL6 9LT

    Received 9 May 2017
  20. Decided - GrantedN6/2014/0434/LUP

    Certificate of lawfulness for part conversion of garage to habitable accomodation

    9 Cypress Avenue, Welwyn Garden City, AL7 1HN

    Received 3 Mar 2014
  21. Decided - RefusedN6/2013/1465/TP

    Trim back overhang and growth and cut back to reshape base of tree covered by TPO 195

    Riverside Lodge, Tewin Water, Welwyn, AL6 0FE

    Received 8 Jul 2013
  22. Decided - GrantedW6/2013/0576/EM

    Construction of new step-free footpath with ramped access to garden

    204 Knightsfield, WELWYN GARDEN CITY, AL8 7RQ

    Received 14 Mar 2013
  23. Appeal Decided - Dismissed6/2018/2242/FULL

    Erection of a detached dwelling and two replacement bridges following the demolition of existing buildings

    Land rear of Nos 10-18 Mymms Drive Brookmans Park Hatfield AL9 7AF

    Received 31 Aug 2018
  24. Decided6/2022/0469/TC

    Fell 1 x Leylandi tree (T1) leaving a root stump

    19 Wilkins Grove Welwyn Garden City Hertfordshire AL8 6JS

    Received 28 Feb 2022

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

Applications by postcode area

Get emailed about new planning applications in Welwyn Hatfield

Area alerts send a daily or weekly email with new applications and decisions near a postcode, filtered by project type. £29 a month, up to 3 areas. Records are limited to the councils we collect.

Set up an area alert

Researching a proposal in Welwyn Hatfield Borough Council

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

How to search planning applications

Guides to planning records

All planning guides

  • Understanding planning · 13 min read

    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

    UK research
    Published Updated

  • Understanding planning · 13 min read

    Planning permission drawings: how to read plans

    Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.

    UK research
    Published Updated

  • Property research · 13 min read

    Planning approval rates: how to read council statistics

    Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.

    UK research
    Published Updated

What these statistics cover

These figures describe applications collected by PlanningTrack for Welwyn Hatfield Borough Council, across all dates currently available. They are a partial dataset, rather than an authority-wide performance measure. The date range does not establish continuous historical coverage.

The approval percentage is approved records divided by approved plus refused records. Pending, withdrawn and unknown outcomes are excluded. No percentage is shown until there is an approved or refused record.

Check collection coverage

More planning authorities in England

Browse all authorities